Radiator



- steam.

Patented Nov. 5, 192.9

UNi'reo sini-Es re'ifeii'rl 'oFFicl-i.

ARTHUR L. SWANK, OF DETROIT, MICHIGAN, ASSIGNOR TO LONG MANUFACTURING COMPANY, OF DETROIT, MICHIGAN, A CORPORATION OF MICHIGAN RADIATOR Application iled December 22, 1924. Serial No. '757,535'.4

The invention relates to radiators and refers more particularly to radiator constructions used in connection with motor vehicles.

One of the objects of the invention resides in providing means for preventing the escape of the water from the radiator. ln the radiator constructions heretofore, the water in the radiator frequently is raised to a temperature sulliciently high to cause vaporization or Such steam is free to escape pastthe radiator lilling cap or by way of the overflow pipe which affords al ready escape for such steam in the usual constructions of radiators in present use. The escape of the steam is objectionable in that the water supply in the radiator cooling system is diminished, requiring frequent replenishment. The appearance of the escaping steam is also undesirable. The present invention ahords a simple construction, readily applied to the present radiator construction whereby the escape of steam from the radiator is prevented, at the same time preventing the building up of objectionably high pressures within the radiator. A further feature of the invention resides in providing means for retaining the overllow tube in position.

Vith these and other objects in View, the invention resides in the novel features of construction and combination and arrangements of parte as inore fully hereinafter described and claimed.

Referring to the drawings Figure 1 represents a fragmentary section of the upper portion of a radiator showing my in ention applied thereto; y

. Figure 2 is an elevation of the baille tube and overflow retainer; and

Fig-ure 3 is a plan view thereof.

ln the drawings reference character 10 indicates the radiator core, 11 the upper tank, 12 the i'iller connected therewith, 13 the radiator till-er cap and 11i the casing, all of which yparts may be of usual construction.

Extending upwardly through v the tube sheet 15 is the overflow tube i6, open at its upper end adjacent the upper part of the lill-er 12 and above the normal Water level indicated at [Concentrically with the filler 12 is the baille tube and overflow retainer 17 pre-feraN bly formed of a metal stamping with the in. wardly bent longitudinal-ly extending portion 18 for receiving the overflow tube 16. The tube 17 is preferably formed cylindrically and of a diameter slightly greater than the inside diameter of the filler 12 to resiliently engage the latter and has its ends unconnected to, provide a longitudinally extending slit 19.,

Forreadily locating the tube 17 in position it is preferably formed with outwardly pressed ears 2() adapted to engage the` lower end of the filler 12 and in such position the tube 17 may be soldered or welded iny one or more spots to prevent relative movement of these parts. f

Iny assembling the parts, the tube 17 is slightly contracted, by reason of the slit 1f) and placed in the filler, the portion 18 receiving the overflow tube 16, unt-il the ears 20 engage the lower end of the liller at which time the tube 17 is allowed to slightly expand to resiliently engage the filler and afford a small opening.longitudinally of the cylinder by reason of the slit 19. In this position,

with the lower end of the cylinder extending below the water `line bfc-, the cylinder may be spot welded or soldered in place, although the inherent resilience of the cylinder Will normally prevent displacement of the tube.

lt will be noted that the overflow tube 16 is securely located against .movement at one side of the filler, being` held between the latter and the tube 17. uithermore, the tube 17acts as a baille substantially preventing steam collected in thetank 1l from escaping by way of the filler or overflow tube. Should there be a tendenry to build up high pressures within the tank l1 it will be noted thatthe slit 19, while not pern'iitting escape of steam to any appreciable extent, will nevertheless provide a readycheck against building up of such pressures within the tank.

lhile it isbelievcd that from the foregoing description, the nature and advantage of my invention will be readily understood, I desire to have it understood that I do not limit myself to what is herein shown and described and th such changes may be resorted to when desired as fall Within the scope of the claims.

That I claim as my invention is 1. The combination witli a radiator having a filler overlow tube and tank, ot' a tube insertable witliin the filler and extending below the normal water level of the tank for substantially preventing escape of steam from said tank, said tube provided with a slit affording relief for excessive pressure in said tank and with a groove for positioning said overiiow tube.

2. The combination with a radiator liaving a liller, a tank and an overflow tube communicating witli said liller, ot' a tube cylindrically formed and provided witli a slit ali'ording resilient engagement witli tiie liller and escape or' excessive pressure from said tank, said tube also provided Witli an inwardly bent portion serving to receive and position the overliow tube.

3. The combination witn a radiator liaving a lillei, a tank and an` oveii'iow tube coinmunicating with said lillei, oi a tune cyiindricaliy oimed and provided witli a slit arording resilient engagement witli tiie iiiier and escape or excessive pressure trom said tank, said tube also provided witii an inwardly i ent portion serving to receive and position tue ovei'tiow tube, said tube also pro vided with outwardly pressed ears serving to engage tne lower end o tiie nner or positioning` die tube tlierewitliin.

Li. 'lie combination witii a radiator having a iller, a tank, and an ovei'ilow tube, or' a tubular member insertable within tie iiller and extending below the normal water level ior the tank or substantially preventing escape oi'stean'i from said tank, said tubular meinber being provided Y witn means above 'the water level tor an'ording reiiei of excessive pressure trom tbe tank, and with an onset portion i'or receiving and positioning tlie overtlow tube.

5. Tlie combination with a radiator having a filler, a tank and an overtlow tube, oi' a. tubular member provided with a slit affording resilient engagement with the filler and esta-pe of excessive pressure trom said tank, said tubular member being also provided witli an odset portion serving to receive and position the overliow tube.

6. The combination witli a radiator having a filler, a tank and an overflow tube, oi' a tubular member insertable witliin tlie filler and extending below tbe normal water level oi tlie tank for substantially preventing escape of steam from said tank, said tubular member being provided in tlie Wall tliereoi with a passageway for aiiording relief or' excessive pressure rom'tlie tank, and witli an offset portion for receiving and positioning the overlow tube.

7. The combination with a radiator liaving a filler, a tank and an overflow tube, otal tubular member insertable within the liller and extending below the normal water level of tlie messes tank for substantially preventing escape of steam from said tank, said tubular member being provided with means extending above the normal water level oi the tank for affording relief of excessive pressure from the tank, and with an offset portion for receiving and positioning tlie overiiow tube.

' ln testimony wliereot1 I affix my signature.

ARTHUR L. SVANK. 

